Answer:
It should be 126°.
Explanation:
Angles ∠ABE and ∠CBE are supplementary angles and supplementary angles add up to 180°. Since we know that the m∠CBE is 54°, we can subtract 54 by 180 and get the measure for ∠ABE. The results should be 126°. I hope this helps! If this answer is wrong then I would love some feedback on what I did wrong! Thank you!